247372640033 has 2 divisors, whose sum is σ = 247372640034. Its totient is φ = 247372640032.

The previous prime is 247372640017. The next prime is 247372640101. The reversal of 247372640033 is 330046273742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138438317329 + 108934322704 = 372073^2 + 330052^2 .

It is a cyclic number.

It is not a de Polignac number, because 247372640033 - 2⁴ = 247372640017 is a prime.

It is a super-2 number, since 2×247372640033² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247372640003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123686320016 + 123686320017.

It is an arithmetic number, because the mean of its divisors is an integer number (123686320017).

Almost surely, 2^247372640033 is an apocalyptic number.

It is an amenable number.

247372640033 is a deficient number, since it is larger than the sum of its proper divisors (1).

247372640033 is an equidigital number, since it uses as much as digits as its factorization.

247372640033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 41.

The spelling of 247372640033 in words is "two hundred forty-seven billion, three hundred seventy-two million, six hundred forty thousand, thirty-three".